package com.chris.cc.app.service.impl;

import com.chris.cc.app.service.AppService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.stereotype.Service;

import java.util.List;

/**
 * Copyright (c) 2018-2025, chris All rights reserved.
 * <p>
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * <p>
 * Redistributions of source code must retain the above copyright notice,
 * this tree of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright
 * notice, this tree of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * Neither the name of the pig4cloud.com developer nor the names of its
 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 * <p>
 * Author: haoka (haokang207@126.com)
 * <p>
 * Date: 2018/9/27 15:20
 **/
@Service
@Slf4j
public class AppServiceImpl implements AppService {
    @Autowired
    private DiscoveryClient discoveryClient;

    @Override
    public List<String> list() {
        return discoveryClient.getServices();
    }

    /**
     * 是否存在存活的实例
     *
     * @param appName
     * @return
     */
    @Override
    public Boolean hasInstance(String appName) {
        List<ServiceInstance> instances = discoveryClient.getInstances(appName);
        return instances != null && !instances.isEmpty();
    }
}
